Publish Advisories

GHSA-cg87-wmx4-v546 GHSA-v4mq-x674-ff73
2026-05-22 18:04:22 -07:00 · 2025-01-17 21:23:48 +00:00
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+{
+  "schema_version": "1.4.0",
+  "id": "GHSA-cg87-wmx4-v546",
+  "modified": "2025-01-17T21:22:57Z",
+  "published": "2025-01-17T21:22:56Z",
+  "aliases": [
+    "CVE-2025-23207"
+  ],
+  "summary": "KaTeX \\htmlData does not validate attribute names",
+  "details": "### Impact\nKaTeX users who render untrusted mathematical expressions with `renderToString` could encounter malicious input using `\\htmlData` that runs arbitrary JavaScript, or generate invalid HTML.\n\n### Patches\nUpgrade to KaTeX v0.16.21 to remove this vulnerability.\n\n### Workarounds\n- Avoid use of or turn off the `trust` option, or set it to forbid `\\htmlData` commands.\n- Forbid inputs containing the substring `\"\\\\htmlData\"`.\n- Sanitize HTML output from KaTeX.\n\n### Details\n`\\htmlData` did not validate its attribute name argument, allowing it to generate invalid or malicious HTML that runs scripts.\n\n### For more information\nIf you have any questions or comments about this advisory:\n\n- Open an issue or security advisory in the [KaTeX repository](https://github.com/KaTeX/KaTeX/)\n- Email us at [katex-security@mit.edu](mailto:katex-security@mit.edu)",
+  "severity": [
+    {
+      "type": "CVSS_V3",
+      "score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L"
+    }
+  ],
+  "affected": [
+    {
+      "package": {
+        "ecosystem": "npm",
+        "name": "katex"
+      },
+      "ranges": [
+        {
+          "type": "ECOSYSTEM",
+          "events": [
+            {
+              "introduced": "0.12.0"
+            },
+            {
+              "fixed": "0.16.21"
+            }
+          ]
+        }
+      ],
+      "database_specific": {
+        "last_known_affected_version_range": "<= 0.16.20"
+      }
+    }
+  ],
+  "references": [
+    {
+      "type": "WEB",
+      "url": "https://github.com/KaTeX/KaTeX/security/advisories/GHSA-cg87-wmx4-v546"
+    },
+    {
+      "type": "WEB",
+      "url": "https://github.com/KaTeX/KaTeX/commit/ff289955e81aab89086eef09254cbf88573d415c"
+    },
+    {
+      "type": "PACKAGE",
+      "url": "https://github.com/KaTeX/KaTeX"
+    }
+  ],
+  "database_specific": {
+    "cwe_ids": [
+      "CWE-116"
+    ],
+    "severity": "MODERATE",
+    "github_reviewed": true,
+    "github_reviewed_at": "2025-01-17T21:22:56Z",
+    "nvd_published_at": null
+  }
+}